电波科学学报2016，Vol.31Issue(6)：1067-1073,7.DOI:10.13443/j.cjors.2016090801
大气扰动对深空通信天线组阵性能的影响
Impact of atmospheric turbulence on the antenna array for deep space communication
摘要
Abstract
By using precise point positioning with GNSS single station receiver,a method of estimating atmospheric structure constant Cn is introduced based on the time correlation of troposphere zenith delay and atmospheric refractive index which using classical Kolmogorov-Obukhov"2/3" turbulence theory and random field theory,and the atmospheric phase errors of two-element antenna array in different turbulence intensity environment are analyzed.The influence of atmospheric scattering on antenna array system is estimated by computing C2n in four very long baseline interferometry(VLBI) deep space stations in China.The statistic results show that except on January in Beijing and Urumchi,the atmospheric phase errors in four stations are almost over 25°,and even more than 50° on July in Beijing and on April in Shanghai at Ka frequency,which would reduce SNR combining performance of antenna array seriously and affect the large capability communication between earth station and deep space detector.关键词
大气结构常数/大气扰动/对流层延迟/精密单点定位/深空通信/天线组阵/相位误差Key words
atmospheric structure constant/atmospheric turbulence/troposphere delay/PPP/Deep space communications/antenna arraying/phase error分类
信息技术与安全科学引用本文复制引用
朱庆林,孙方,王红光,田耀佳,刘琨,张利军..大气扰动对深空通信天线组阵性能的影响[J].电波科学学报,2016,31(6):1067-1073,7.基金项目
国家自然科学基金(41305024) （41305024）
